The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 19, 1991
Filed:
Dec. 19, 1988
Keizo Koya, Kanagawa, JP;
Koki Nakamura, Kanagawa, JP;
Hiroyuki Watanabe, Kanagawa, JP;
Yasuhiro Yoshioka, Kanagawa, JP;
Fuji Photo Film Co., Ltd., Kanagawa, JP;
Abstract
A novel silver halide light-sensitive material is provided, comprising a compound represented by the general formula (I): ##STR1## wherein EAG represents an aromatic group which receives electrons from a reducing substance; R.sup.1 represents hydrogen atom or a substituent; R.sup.2 represents an electrophilic group, with the proviso that R.sup.1 and R.sup.2 may be in the position of cis or trans to each other; R.sup.3 and R.sup.4 each represents hydrogen atom or a hydrocarbon group; ETG represents a group capable of transferring electrons; e represents an integer 0 or 1; Time represents a group which undergoes reaction triggered by the cleavage from the carbon carrying R.sup.3 and R.sup.4 to release PUG; t represents an integer 0 or 1; and PUG represents a photographically useful group. In a preferred embodiment, R.sup.1 represents an aromatic group, heterocyclic group or group represented by --Y.sup.1 --R.sup.5 in which Y.sup.1 represents a hetero atom or hetero atomic group and R.sup.5 represents hydrogen atom, an aliphatic group, an aromatic group or a heterocyclic group. R.sup.2 represents an acyl group, carbamoyl group, alkoxycarbonyl group, cyano group, sulfonyl group or nitro group. R.sup.1 is a group represented by --Y.sup.1 --Y.sup.2 --R.sup.6 in which Y.sup.1 and Y.sup.2 each represents a hetero atom or hetero atomic group and may be the same or different and R.sup.6 represents hydrogen atom, an aliphatic group, an aromatic group or a heterocyclic group.